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OSN 500 550 580 V100R008C50 Commissioning and Configuration Guide 02

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuring the Inband DCN

Configuring the Inband DCN

During network planning, you do not need to set up an independent DCN for management and control. Instead, you can use certain bandwidths of a service network to set up a DCN.

Enabling the DCN Function for a Port

The network management information can be transmitted over the inband data communication network (DCN) when the DCN function is enabled for the ports at both ends of a link.

Prerequisites

  • You are an NM user with Maintenance Group rights or higher.

  • The DCN function is disabled on a port when an Ethernet service that exclusively occupies the port is configured.

Procedure

  1. In the NE Explorer, select the desired NE and choose Communication > DCN Management from the Function Tree.
  2. Click the Port Settings tab.
  3. Set Enabled Status to Enabled for the related port.
  4. Click Apply.

Setting the Protocol Stack Used by an Inband DCN

Inband DCN packets can be transmitted through the IP protocol or HWECC protocol.

Prerequisites

You are an NM user with Maintenance Group rights or higher.

Procedure

  1. In the NE Explorer, select the NE and choose Communication > DCN Management from the Function Tree.
  2. Click the Protocol Settings tab. Set Protocol Type of the corresponding port.

    NOTE:

    The HWECC protocol is an internal protocol of Huawei and is applicable to the Huawei equipment. When inband DCN packets need to pass through the third-party network, you need to set Protocol Type to IP.

  3. Click Apply.

Setting the VLAN ID and Bandwidth Used by an Inband DCN

If the equipment communicates with the NMS through the inband DCN, the network management information is transmitted with the service information. In this case, the equipment identifies the management information through a default VLAN ID. The bandwidth used by an inband DCN can be adjusted according to the network status.

Prerequisites

You are an NM user with Maintenance Group rights or higher.

Context

  • If the default VLAN ID of the inband DCN conflicts with the VLAN ID used by the service, you can manually modify the VLAN ID of the inband DCN. Ensure that the DCNs on the entire network use the same VLAN ID.
  • If the DCN packet does not use all the preset bandwidth, the idle bandwidth can be shared with the service packet.
  • It is recommended that you perform modification first on the non-gateway NEs and then on the gateway NE to prevent the non-gateway NEs from being unreachable to the NMS.

Procedure

  1. In the NE Explorer, select the NE and choose Communication > DCN Management from the Function Tree.
  2. Click the Bandwidth Management tab, and set the required parameters.

    NOTE:
    When you set these parameters, pay attention to the following points:
    • Click Default, and the parameter takes the default value.
    • Generally, use the default VLAN ID (4094). When the VLAN ID used by the service conflicts with the VLAN ID used by a DCN channel, define another VLAN ID for the DCN channel. Ensure that the DCN channels on the entire network use the same VLAN ID.
    • The bandwidth ranges from 64 Mbit/s to 1000 Mbit/s. It is recommended that you set the bandwidth to a value greater than 512 Mbit/s. Otherwise, the network management information is transmitted at a low rate.

  3. Click Apply.

Setting the Parameters for NMS Access

On a traditional DCN, the equipment is connected to the NMS through the SCC board. The OptiX OSN equipment can also be connected to the NMS through the NM interface on the Ethernet board. In this case, set the parameters of the Ethernet board for NM access so that the equipment can normally communicate with the NMS.

Prerequisites

You are an NM user with Maintenance Group rights or higher.

Precautions
NOTE:
  • Set these parameters only when the equipment is connected to the NMS through the Ethernet service board.
  • By default, Enabled Status is set to Disabled.
  • When the DCN port on the equipment is directly connected to the NMS, the IP addresses of the NMS and the NNI on the equipment must be in the same network segment.
  • When the DCN port on the equipment is connected to the NMS through a router, the IP addresses of the NMS and the NNI on the equipment are not necessarily in the same network segment.

Procedure

  1. In the NE Explorer, select the NE and choose Communication > DCN Management from the Function Tree.
  2. Click the Access Control tab, and set the required parameters.
  3. Click Apply.

Setting Inband DCN Packet Priority

This section describes how to set the inband DCN packet priority. When a network congestion occurs, DCN packets are forwarded based on priority to ensure the communication between the equipment and the NMS.

Prerequisites

You are an NM user with Maintenance Group rights or higher.

Procedure

  1. Select the NE in the NE Explorer. Choose Communication > DCN Management from the Function Tree.
  2. Select the Packet Control tab, and set Packet Priority of corresponding ports. For how to set the parameter, see Packet Control.
  3. Click Apply.

Checking the DCN Routing Table

After the inband DCN protocol is configured, check the DCN routing table to ensure that the inband DCN configurations are consistent with DCN planning.

Prerequisites

  • You are an NM user with Administrators rights or higher.
  • Protocol Stack Type of the inband DCN is set to IP.
Tools, Equipment, and Materials

U2000

Procedure

  1. In the NE Explorer, select the NE and then choose Communication > IP Protocol Stack Management from the Function Tree.
  2. Click the IP Route Management tab. In the tab page, click Query to query the IP routes.

    NOTE:
    In the IP routing table, if all the NEs on which the protocol is set to the IP protocol on the same data communication network (DCN) are displayed, it indicates that the NEs communicate with each other normally. If some NEs are not displayed, handle the fault by referring to TroubleshootingTroubleshooting (Inband DCN).


    Table 1-6  Parameters in the IP routing table
    Parameter Description
    Destination Address Display the destination address of the IP packet to be transmitted.
    Mask Indicates the subnet mask of the destination address of the IP packet.
    NOTE:
    The subnet masks of the NEs in the same network segment must be the same. Otherwise, routing errors occur.
    Gateway IP Address Indicates the IP address of the gateway NE for the NE, or the IP address of the next hop for the IP packet.
    Protocol "DIRECT" indicates that the route is between the local NE and the neighboring NE.
    Interface Indicates the interface that is used on the route.
    • Ethernet1, the Ethernet interface on the SCC board. "1" indicates the number of the Ethernet interface.
    • InLoopBack0, the loopback interface (that is, the interface whose IP address is 127.0.0.1).
    • Serial3, the PPP interface. "3" indicates the number of the PPP interface. If DCN routes are generated through Ethernet interfaces on data boards, this parameter is displayed as "serial".
    Metric Indicates the maximum number of routers that IP packets can travel by.
    Working Status Indicates the working status of an NE, for example, Working.

Verifying the Inband DCN

To check whether the configured inband DCN functions normally, verify whether all the basic functions of the inband DCN are available.

Prerequisites

The inband DCN must be configured.
Background Information
You can verify the MPLS APS in the following aspects:
  • Create a non-gateway NE by using the U2000. After the creation, the user can log in to the non-gateway NE and can upload the data of the NE to the U2000.
  • Query the DCN management information about the non-gateway NE by using the U2000. The inband DCN should be configured correctly.
  • Change the parameters of the DCN, such as the protocol mode. The inband DCN should function normally.

Procedure

  1. Create a non-gateway NE by using the U2000. After the creation, the user can log in to the non-gateway NE and can upload the data of the NE to the U2000.

    NOTE:

    Set Gateway Type to Non-Gateway, and then set Affiliated Gateway to the gateway NE on the inband DCN.

  2. Query the DCN management information about the non-gateway NE by using the U2000. The inband DCN should be configured correctly.
    1. In the Main Menu, choose Administration > DCN Management.
    2. Choose Filter Information in the Filter NE tab, then click OK.
    3. Click the NE tab.
    4. Click Refresh to check whether the Communication Status of the non-gateway NE is Normal.
  3. Change the parameters of the DCN, such as the protocol mode. The inband DCN should function normally.

    NOTE:

    On a network where the inband DCN communications are adopted, the parameters of all the NEs must be the same. The parameters such as the DCN protocol mode of non-gateway NEs need to be changed before the parameters such as the DCN protocol mode of the gateway NEs are changed.

    1. In the Main Topology, right-click the NE to be configured, and then choose NE Explorer from the shortcut menu.
    2. In the NE Explorer, select the NE to be configured, and then choose Communication > DCN Management from the Function Tree.
    3. Change the parameters, such as Bandwidth and Protocol Type.
    4. Click Apply.

Follow-up Procedure

If testing the inband DCN fails, rectify faults by referring to NEs Being Unreachable Frequently.

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Updated: 2019-01-21

Document ID: EDOC1100020976

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